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e972125f11
and specifically the ack receiving functionality.
Semisync is turned to be static instead of plugin so its functions
are invoked at the same points as RUN_HOOKS.
The RUN_HOOKS and the observer interface remain to be removed by later
patch.
Todo:
React on killed status by repl_semisync_master.wait_after_sync(). Currently
Repl_semi_sync_master::commit_trx does not check the killed status.
There were few bugfixes found that are present in mysql and its unclear
whether/how they are covered. Those include:
Bug#15985893: GTID SKIPPED EVENTS ON MASTER CAUSE SEMI SYNC TIME-OUTS
Bug#17932935 CALLING IS_SEMI_SYNC_SLAVE() IN EACH FUNCTION CALL
HAS BAD PERFORMANCE
Bug#20574628: SEMI-SYNC REPLICATION PERFORMANCE DEGRADES WITH A HIGH NUMBER OF THREADS
200 lines
11 KiB
Plaintext
200 lines
11 KiB
Plaintext
include/master-slave.inc
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[connection master]
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drop table if exists test.t1;
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connection slave;
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reset master;
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create table test.t1(a int);
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drop table test.t1;
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include/show_binlog_events.inc
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Log_name Pos Event_type Server_id End_log_pos Info
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slave-bin.000001 # Gtid # # GTID #-#-#
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slave-bin.000001 # Query # # use `test`; create table test.t1(a int)
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slave-bin.000001 # Gtid # # GTID #-#-#
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slave-bin.000001 # Query # # use `test`; DROP TABLE `t1` /* generated by server */
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connection master;
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select
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substring(file_name, locate("master-", file_name)) as FILE_NAME,
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EVENT_NAME,
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if (count_read > 0, "MANY", "NONE") as COUNT_READ,
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if (count_write > 0,"MANY", "NONE") as COUNT_WRITE,
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if (sum_number_of_bytes_read > 0, "MANY", "NONE") as SUM_NUMBER_OF_BYTES_READ,
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if (sum_number_of_bytes_write > 0, "MANY", "NONE") as SUM_NUMBER_OF_BYTES_WRITE
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from performance_schema.file_summary_by_instance
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where file_name like "%master-%" order by file_name;
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FILE_NAME EVENT_NAME COUNT_READ COUNT_WRITE SUM_NUMBER_OF_BYTES_READ SUM_NUMBER_OF_BYTES_WRITE
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master-bin.000001 wait/io/file/sql/binlog MANY MANY MANY MANY
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master-bin.index wait/io/file/sql/binlog_index MANY MANY MANY MANY
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select * from performance_schema.file_summary_by_instance
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where file_name like "%slave-%" order by file_name;
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FILE_NAME EVENT_NAME OBJECT_INSTANCE_BEGIN COUNT_STAR SUM_TIMER_WAIT MIN_TIMER_WAIT AVG_TIMER_WAIT MAX_TIMER_WAIT COUNT_READ SUM_TIMER_READ MIN_TIMER_READ AVG_TIMER_READ MAX_TIMER_READ SUM_NUMBER_OF_BYTES_READ COUNT_WRITE SUM_TIMER_WRITE MIN_TIMER_WRITE AVG_TIMER_WRITE MAX_TIMER_WRITE SUM_NUMBER_OF_BYTES_WRITE COUNT_MISC SUM_TIMER_MISC MIN_TIMER_MISC AVG_TIMER_MISC MAX_TIMER_MISC
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"Expect a master binlog + binlog_index"
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select
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substring(file_name, locate("master-", file_name)) as FILE_NAME,
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EVENT_NAME,
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if (count_read > 0, "MANY", "NONE") as COUNT_READ,
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if (count_write > 0,"MANY", "NONE") as COUNT_WRITE,
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if (sum_number_of_bytes_read > 0, "MANY", "NONE") as SUM_NUMBER_OF_BYTES_READ,
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if (sum_number_of_bytes_write > 0, "MANY", "NONE") as SUM_NUMBER_OF_BYTES_WRITE
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from performance_schema.file_summary_by_instance
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where event_name like "%binlog%" order by file_name;
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FILE_NAME EVENT_NAME COUNT_READ COUNT_WRITE SUM_NUMBER_OF_BYTES_READ SUM_NUMBER_OF_BYTES_WRITE
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master-bin.000001 wait/io/file/sql/binlog MANY MANY MANY MANY
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master-bin.index wait/io/file/sql/binlog_index MANY MANY MANY MANY
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select
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EVENT_NAME,
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if (count_read > 0, "MANY", "NONE") as COUNT_READ,
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if (count_write > 0,"MANY", "NONE") as COUNT_WRITE,
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if (sum_number_of_bytes_read > 0, "MANY", "NONE") as SUM_NUMBER_OF_BYTES_READ,
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if (sum_number_of_bytes_write > 0, "MANY", "NONE") as SUM_NUMBER_OF_BYTES_WRITE
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from performance_schema.file_summary_by_event_name
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where event_name like "%binlog%" order by event_name;
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EVENT_NAME COUNT_READ COUNT_WRITE SUM_NUMBER_OF_BYTES_READ SUM_NUMBER_OF_BYTES_WRITE
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wait/io/file/sql/binlog MANY MANY MANY MANY
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wait/io/file/sql/binlog_index MANY MANY MANY MANY
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wait/io/file/sql/binlog_state NONE NONE NONE NONE
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select
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EVENT_NAME,
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if (count_star > 0, "MANY", "NONE") as COUNT_STAR
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from performance_schema.events_waits_summary_global_by_event_name
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where event_name like "%MYSQL_BIN_LOG%"
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and event_name not like "%MYSQL_BIN_LOG::update_cond"
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and event_name not like "%MYSQL_BIN_LOG::COND_binlog_background_thread%"
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and event_name not like "%MYSQL_BIN_LOG::COND_xid_list"
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order by event_name;
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EVENT_NAME COUNT_STAR
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wait/synch/cond/sql/MYSQL_BIN_LOG::COND_bin_log_updated MANY
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wait/synch/cond/sql/MYSQL_BIN_LOG::COND_queue_busy NONE
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wait/synch/cond/sql/MYSQL_BIN_LOG::COND_relay_log_updated NONE
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wait/synch/mutex/sql/MYSQL_BIN_LOG::LOCK_binlog_background_thread MANY
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wait/synch/mutex/sql/MYSQL_BIN_LOG::LOCK_binlog_end_pos MANY
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wait/synch/mutex/sql/MYSQL_BIN_LOG::LOCK_index MANY
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wait/synch/mutex/sql/MYSQL_BIN_LOG::LOCK_xid_list MANY
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"Expect no slave relay log"
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select * from performance_schema.file_summary_by_instance
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where event_name like "%relaylog%" order by file_name;
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FILE_NAME EVENT_NAME OBJECT_INSTANCE_BEGIN COUNT_STAR SUM_TIMER_WAIT MIN_TIMER_WAIT AVG_TIMER_WAIT MAX_TIMER_WAIT COUNT_READ SUM_TIMER_READ MIN_TIMER_READ AVG_TIMER_READ MAX_TIMER_READ SUM_NUMBER_OF_BYTES_READ COUNT_WRITE SUM_TIMER_WRITE MIN_TIMER_WRITE AVG_TIMER_WRITE MAX_TIMER_WRITE SUM_NUMBER_OF_BYTES_WRITE COUNT_MISC SUM_TIMER_MISC MIN_TIMER_MISC AVG_TIMER_MISC MAX_TIMER_MISC
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select * from performance_schema.file_summary_by_event_name
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where event_name like "%relaylog%" order by event_name;
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EVENT_NAME COUNT_STAR SUM_TIMER_WAIT MIN_TIMER_WAIT AVG_TIMER_WAIT MAX_TIMER_WAIT COUNT_READ SUM_TIMER_READ MIN_TIMER_READ AVG_TIMER_READ MAX_TIMER_READ SUM_NUMBER_OF_BYTES_READ COUNT_WRITE SUM_TIMER_WRITE MIN_TIMER_WRITE AVG_TIMER_WRITE MAX_TIMER_WRITE SUM_NUMBER_OF_BYTES_WRITE COUNT_MISC SUM_TIMER_MISC MIN_TIMER_MISC AVG_TIMER_MISC MAX_TIMER_MISC
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wait/io/file/sql/relaylog 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
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wait/io/file/sql/relaylog_index 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
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select * from performance_schema.events_waits_summary_global_by_event_name
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where event_name like "%MYSQL_RELAY_LOG%"
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and event_name not like "%MYSQL_RELAY_LOG::update_cond"
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order by event_name;
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EVENT_NAME COUNT_STAR SUM_TIMER_WAIT MIN_TIMER_WAIT AVG_TIMER_WAIT MAX_TIMER_WAIT
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wait/synch/cond/sql/MYSQL_RELAY_LOG::COND_bin_log_updated 0 0 0 0 0
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wait/synch/cond/sql/MYSQL_RELAY_LOG::COND_queue_busy 0 0 0 0 0
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wait/synch/cond/sql/MYSQL_RELAY_LOG::COND_relay_log_updated 0 0 0 0 0
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wait/synch/mutex/sql/MYSQL_RELAY_LOG::LOCK_binlog_end_pos 0 0 0 0 0
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wait/synch/mutex/sql/MYSQL_RELAY_LOG::LOCK_index 0 0 0 0 0
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connection slave;
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"============ Performance schema on slave ============"
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select * from performance_schema.file_summary_by_instance
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where file_name like "%master-%" order by file_name;
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FILE_NAME EVENT_NAME OBJECT_INSTANCE_BEGIN COUNT_STAR SUM_TIMER_WAIT MIN_TIMER_WAIT AVG_TIMER_WAIT MAX_TIMER_WAIT COUNT_READ SUM_TIMER_READ MIN_TIMER_READ AVG_TIMER_READ MAX_TIMER_READ SUM_NUMBER_OF_BYTES_READ COUNT_WRITE SUM_TIMER_WRITE MIN_TIMER_WRITE AVG_TIMER_WRITE MAX_TIMER_WRITE SUM_NUMBER_OF_BYTES_WRITE COUNT_MISC SUM_TIMER_MISC MIN_TIMER_MISC AVG_TIMER_MISC MAX_TIMER_MISC
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select
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substring(file_name, locate("slave-", file_name)) as FILE_NAME,
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EVENT_NAME,
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if (count_read > 0, "MANY", "NONE") as COUNT_READ,
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if (count_write > 0,"MANY", "NONE") as COUNT_WRITE,
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if (sum_number_of_bytes_read > 0, "MANY", "NONE") as SUM_NUMBER_OF_BYTES_READ,
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if (sum_number_of_bytes_write > 0, "MANY", "NONE") as SUM_NUMBER_OF_BYTES_WRITE
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from performance_schema.file_summary_by_instance
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where file_name like "%slave-%"
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and (file_name not like "%slave-relay-bin.0%"
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or file_name like "%slave-relay-bin.000001"
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or file_name like "%slave-relay-bin.000002")
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order by file_name;
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FILE_NAME EVENT_NAME COUNT_READ COUNT_WRITE SUM_NUMBER_OF_BYTES_READ SUM_NUMBER_OF_BYTES_WRITE
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slave-bin.000001 wait/io/file/sql/binlog MANY MANY MANY MANY
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slave-bin.index wait/io/file/sql/binlog_index MANY MANY MANY MANY
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slave-relay-bin.000001 wait/io/file/sql/relaylog MANY MANY MANY MANY
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slave-relay-bin.000002 wait/io/file/sql/relaylog MANY MANY MANY MANY
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slave-relay-bin.index wait/io/file/sql/relaylog_index MANY MANY MANY MANY
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"Expect a slave binlog + binlog_index"
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select
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substring(file_name, locate("slave-", file_name)) as FILE_NAME,
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EVENT_NAME,
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if (count_read > 0, "MANY", "NONE") as COUNT_READ,
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if (count_write > 0,"MANY", "NONE") as COUNT_WRITE,
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if (sum_number_of_bytes_read > 0, "MANY", "NONE") as SUM_NUMBER_OF_BYTES_READ,
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if (sum_number_of_bytes_write > 0, "MANY", "NONE") as SUM_NUMBER_OF_BYTES_WRITE
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from performance_schema.file_summary_by_instance
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where event_name like "%binlog%" order by file_name;
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FILE_NAME EVENT_NAME COUNT_READ COUNT_WRITE SUM_NUMBER_OF_BYTES_READ SUM_NUMBER_OF_BYTES_WRITE
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slave-bin.000001 wait/io/file/sql/binlog MANY MANY MANY MANY
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slave-bin.index wait/io/file/sql/binlog_index MANY MANY MANY MANY
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select
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EVENT_NAME,
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if (count_read > 0, "MANY", "NONE") as COUNT_READ,
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if (count_write > 0,"MANY", "NONE") as COUNT_WRITE,
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if (sum_number_of_bytes_read > 0, "MANY", "NONE") as SUM_NUMBER_OF_BYTES_READ,
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if (sum_number_of_bytes_write > 0, "MANY", "NONE") as SUM_NUMBER_OF_BYTES_WRITE
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from performance_schema.file_summary_by_event_name
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where event_name like "%binlog%" order by event_name;
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EVENT_NAME COUNT_READ COUNT_WRITE SUM_NUMBER_OF_BYTES_READ SUM_NUMBER_OF_BYTES_WRITE
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wait/io/file/sql/binlog MANY MANY MANY MANY
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wait/io/file/sql/binlog_index MANY MANY MANY MANY
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wait/io/file/sql/binlog_state NONE NONE NONE NONE
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select
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EVENT_NAME,
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if (count_star > 0, "MANY", "NONE") as COUNT_STAR
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from performance_schema.events_waits_summary_global_by_event_name
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where event_name like "%MYSQL_BIN_LOG%"
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and event_name not like "%MYSQL_BIN_LOG::update_cond"
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and event_name not like "%MYSQL_BIN_LOG::COND_binlog_background_thread%"
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and event_name not like "%MYSQL_BIN_LOG::COND_xid_list"
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order by event_name;
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EVENT_NAME COUNT_STAR
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wait/synch/cond/sql/MYSQL_BIN_LOG::COND_bin_log_updated NONE
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wait/synch/cond/sql/MYSQL_BIN_LOG::COND_queue_busy NONE
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wait/synch/cond/sql/MYSQL_BIN_LOG::COND_relay_log_updated NONE
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wait/synch/mutex/sql/MYSQL_BIN_LOG::LOCK_binlog_background_thread MANY
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wait/synch/mutex/sql/MYSQL_BIN_LOG::LOCK_binlog_end_pos MANY
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wait/synch/mutex/sql/MYSQL_BIN_LOG::LOCK_index MANY
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wait/synch/mutex/sql/MYSQL_BIN_LOG::LOCK_xid_list MANY
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"Expect a slave relay log"
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select
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substring(file_name, locate("slave-", file_name)) as FILE_NAME,
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EVENT_NAME,
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if (count_read > 0, "MANY", "NONE") as COUNT_READ,
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if (count_write > 0,"MANY", "NONE") as COUNT_WRITE,
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if (sum_number_of_bytes_read > 0, "MANY", "NONE") as SUM_NUMBER_OF_BYTES_READ,
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if (sum_number_of_bytes_write > 0, "MANY", "NONE") as SUM_NUMBER_OF_BYTES_WRITE
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from performance_schema.file_summary_by_instance
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where event_name like "%relaylog%"
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and (file_name not like "%slave-relay-bin.0%"
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or file_name like "%slave-relay-bin.000001"
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or file_name like "%slave-relay-bin.000002")
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order by file_name;
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FILE_NAME EVENT_NAME COUNT_READ COUNT_WRITE SUM_NUMBER_OF_BYTES_READ SUM_NUMBER_OF_BYTES_WRITE
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slave-relay-bin.000001 wait/io/file/sql/relaylog MANY MANY MANY MANY
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slave-relay-bin.000002 wait/io/file/sql/relaylog MANY MANY MANY MANY
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slave-relay-bin.index wait/io/file/sql/relaylog_index MANY MANY MANY MANY
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select
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EVENT_NAME,
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if (count_read > 0, "MANY", "NONE") as COUNT_READ,
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if (count_write > 0,"MANY", "NONE") as COUNT_WRITE,
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if (sum_number_of_bytes_read > 0, "MANY", "NONE") as SUM_NUMBER_OF_BYTES_READ,
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if (sum_number_of_bytes_write > 0, "MANY", "NONE") as SUM_NUMBER_OF_BYTES_WRITE
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from performance_schema.file_summary_by_event_name
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where event_name like "%relaylog%" order by event_name;
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EVENT_NAME COUNT_READ COUNT_WRITE SUM_NUMBER_OF_BYTES_READ SUM_NUMBER_OF_BYTES_WRITE
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wait/io/file/sql/relaylog MANY MANY MANY MANY
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wait/io/file/sql/relaylog_index MANY MANY MANY MANY
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select
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EVENT_NAME,
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if (count_star > 0, "MANY", "NONE") as COUNT_STAR
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from performance_schema.events_waits_summary_global_by_event_name
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where event_name like "%MYSQL_RELAY_LOG%"
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and event_name not like "%MYSQL_RELAY_LOG::update_cond"
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order by event_name;
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EVENT_NAME COUNT_STAR
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wait/synch/cond/sql/MYSQL_RELAY_LOG::COND_bin_log_updated NONE
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wait/synch/cond/sql/MYSQL_RELAY_LOG::COND_queue_busy NONE
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wait/synch/cond/sql/MYSQL_RELAY_LOG::COND_relay_log_updated MANY
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wait/synch/mutex/sql/MYSQL_RELAY_LOG::LOCK_binlog_end_pos NONE
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wait/synch/mutex/sql/MYSQL_RELAY_LOG::LOCK_index MANY
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include/stop_slave.inc
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